Scalable polyzwitterion–polydopamine coating for regenerable oil/water separation and underwater self-cleaning of stubborn heavy oil fouling without pre-hydration

• DOI: 10.1039/c8cc04611e
• Publication Date: 2018-07-30T16:04:30Z
• Authors: Jiawen Zhang; Ling Zhang; Xinwei Cui; Lu Gong; Li Xiang; Chen Shi; Wenjihao Hu; Hongbo Zeng
• Keywords: Asphaltene; Biofouling

A facile and scalable polyzwitterion-polydopamine coating strategy has been developed to functionalize substrates sponges. This approach, for the first time, achieves superior regenerable underwater self-cleaning of stubborn asphaltenes-containing heavy oil fouling without pre-hydration removal water residues from oil, with significant implications in many engineering environmental processes.